### Overlapping Rectangles Puzzle

Thanks to Robin for the suggestion! Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address in vid...

### Incredible Factorial Problem!

This was the hardest problem in the 2002-3 British Mathematical Olympiad. Thanks to Nahian for the suggestion! British Mathematical Olympiad 2002-2003 proble...

### The Largest Cone Puzzle

What is the largest cone you can make from a circular sector of radius 1? I thank Joe for suggesting the problem! Maximum volume of a cone shaped cup (Krista...

### A Clever Solution

Learn one weird trick to solve this problem! Thanks to Nestor Abad for alerting me of a typo in an earlier version of the video. Reference https://socratic.o...

### The Wedged Angle

Can you solve this geometry puzzle? Thanks to Robson for the suggestion! Polish translation credit: Tłumaczenie: Przemyslav Znajdź mnie tutaj: https://forum....

### Best Meeting Spot For 4 Friends

Which point is "closest" to 4 friends? Thanks to Chanul for suggesting this problem, which is adapted from a Sri Lankan Olympiad question. Special thanks thi...

### Only 10 Percent of Students Solved This

Can you solve this problem that stumped many advanced math students? References https://io9.gizmodo.com/ready-this-simple-puzzle-once-stumped-96-of-americas-...

### The Stacked Cubes Puzzle

This is a fun one! Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address in video). I consider a...

### The Folded Square Puzzle

I thank Ankit and Amlan for the suggestion! This problem is adapted from an examination at the prestigious Chennai Mathematical Institute. Polish translation...

### Can You Solve The 6 Cards Game?

It takes perfect logical reasoning to solve this puzzle. I thank Joe for the suggestion! Polish translation by Przemyslav Znajdź mnie tutaj: https://forum.cd...

### The Last Side Puzzle

This was given to 9th and 10th grade students in a math competition. Can you figure it out? References Question 23 of Kangaroo competition https://www.matema...